Convert Milliwebers to Femtowebers

Convert Milliwebers (mWb) to Femtowebers (fWb) instantly and accurately.

Milliwebers (mWb)
Femtowebers (fWb)

Conversion Formula

fWb = mWb × 1000000000000

About Milliwebers

The milliweber (mWb) equals 10⁻³ Wb. Practical unit for small power inductors and relay cores - a typical E-core ferrite transformer with a 1 cm² cross-section at 0.3 T saturates at 0.3 mWb; audio transformer cores operate in the mWb range. 1 mWb = 10⁻³ Wb = 10⁵ Mx.

About Femtowebers

The femtoweber (fWb) equals 10⁻¹⁵ Wb. Used in SQUID magnetometer research to express flux noise spectral density; a typical high-T₂ SQUID has white flux noise of a few µΦ₀/√Hz, corresponding to sub-fWb/√Hz levels. 1 fWb = 10⁻¹⁵ Wb.

Quick Reference Table

Milliwebers (mWb)Femtowebers (fWb)
1 mWb1 × 1012 fWb
2 mWb2 × 1012 fWb
5 mWb5 × 1012 fWb
10 mWb1 × 1013 fWb
25 mWb2.5 × 1013 fWb
50 mWb5 × 1013 fWb
100 mWb1 × 1014 fWb

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